From its humble beginnings in 2002 when only seven people partook, the event has grown, this year drawing more than 1,200 partici-pants.

The mob split themselves up into groups of roughly 300 to board the 1, E, R and 6 lines, with pants-free riders gradually taking over each car on a train.

But the good times aren't limited to the Five Boroughs. Hundreds of people in 21 other cities across 8 other countries also recognized the day with a pantsless ride on their local subway, light rail or bus.